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Update mxdisplaysurface.cpp

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Misha 2024-01-20 12:46:02 -05:00
parent 9a3df8d9f8
commit 09e8343f6a
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1 changed files with 163 additions and 3 deletions
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166
LEGO1/omni/src/video/mxdisplaysurface.cpp
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@ -564,10 +564,170 @@ void MxDisplaySurface::ReleaseDC(HDC p_hdc)
this->m_ddSurface2->ReleaseDC(p_hdc);
}
// STUB: LEGO1 0x100bbc60
LPDIRECTDRAWSURFACE MxDisplaySurface::VTable0x44(MxBitmap*, undefined4*, undefined4, undefined4)
// FUNCTION: LEGO1 0x100bbc60
LPDIRECTDRAWSURFACE MxDisplaySurface::VTable0x44(
MxBitmap* p_bitmap,
undefined4* p_ret,
undefined4 p_doNotWriteToSurface,
undefined4 p_transparent
)
{
return NULL;
LPDIRECTDRAWSURFACE surface = NULL;
LPDIRECTDRAW draw = MVideoManager()->GetDirectDraw();
MVideoManager();
DDSURFACEDESC ddsd;
memset(&ddsd, 0, sizeof(ddsd));
ddsd.dwSize = sizeof(ddsd);
if (draw->GetDisplayMode(&ddsd))
return NULL;
ddsd.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH | DDSD_PIXELFORMAT;
ddsd.dwWidth = p_bitmap->GetBmiWidth();
ddsd.dwHeight = p_bitmap->GetBmiHeightAbs();
*p_ret = 0;
ddsd.ddsCaps.dwCaps = DDSCAPS_SYSTEMMEMORY | DDSCAPS_OFFSCREENPLAIN;
if (draw->CreateSurface(&ddsd, &surface, NULL) != S_OK) {
if (!*p_ret) {
*p_ret = 0;
// Try creating bitmap surface in vram if system ram ran out
ddsd.ddsCaps.dwCaps &= ~DDSCAPS_VIDEOMEMORY;
ddsd.ddsCaps.dwCaps |= DDSCAPS_SYSTEMMEMORY;
if (draw->CreateSurface(&ddsd, &surface, NULL) != S_OK) {
surface = NULL;
}
}
}
if (!surface) {
return NULL;
}
memset(&ddsd, 0, sizeof(ddsd));
ddsd.dwSize = sizeof(ddsd);
if (surface->Lock(NULL, &ddsd, 1, 0) != S_OK) {
surface->Release();
return NULL;
}
if (p_doNotWriteToSurface) {
return surface;
}
BITMAPINFOHEADER* hdr = p_bitmap->GetBmiHeader();
MxU32 rowsBeforeTop;
MxU8* bitmapSrcPtr;
// The goal here is to enable us to walk through the bitmap's rows
// in order, regardless of the orientation. We want to end up at the
// start of the first row, which is either at position 0, or at
// (image_stride * biHeight) - 1.
// Reminder: Negative biHeight means this is a top-down DIB.
// Otherwise it is bottom-up.
switch (p_bitmap->GetBmiHeader()->biCompression) {
case BI_RGB: {
if (p_bitmap->GetBmiHeight() < 0)
rowsBeforeTop = 0;
else
rowsBeforeTop = p_bitmap->GetBmiHeightAbs() - 1;
bitmapSrcPtr = p_bitmap->GetBitmapData() + (p_bitmap->GetBmiStride() * rowsBeforeTop);
break;
}
case BI_RGB_TOPDOWN:
bitmapSrcPtr = p_bitmap->GetBitmapData();
break;
default: {
if (p_bitmap->GetBmiHeight() < 0)
rowsBeforeTop = 0;
else
rowsBeforeTop = p_bitmap->GetBmiHeightAbs() - 1;
bitmapSrcPtr = p_bitmap->GetBitmapData() + (p_bitmap->GetBmiStride() * rowsBeforeTop);
}
}
MxU16* surfaceData = (MxU16*) ddsd.lpSurface;
MxU32 widthNormal = p_bitmap->GetBmiWidth();
MxU32 heightAbs = p_bitmap->GetBmiHeightAbs();
// How many bytes are there for each row of the bitmap?
// (i.e. the image stride)
// If this is a bottom-up DIB, we will walk it in reverse.
// TODO: Same rounding trick as in MxBitmap
MxS32 rowSeek = ((p_bitmap->GetBmiWidth() + 3) & -4);
if (p_bitmap->GetBmiHeader()->biCompression != BI_RGB_TOPDOWN && p_bitmap->GetBmiHeight() >= 0)
rowSeek = -rowSeek;
MxU32 newPitch = ddsd.lPitch;
switch (ddsd.ddpfPixelFormat.dwRGBBitCount) {
case 8: {
for (heightAbs > 0; heightAbs--;) {
memcpy(surfaceData, bitmapSrcPtr, p_bitmap->GetBmiHeight());
bitmapSrcPtr += rowSeek;
surfaceData = (MxU16*) ((MxU8*) surfaceData + newPitch);
}
surface->Unlock(ddsd.lpSurface);
if (p_transparent && surface) {
DDCOLORKEY key;
surface->SetColorKey(8, &key);
}
break;
}
case 16:
if (m_16bitPal == NULL) {
if (surface) {
surface->Release();
}
return NULL;
}
else {
rowSeek -= p_bitmap->GetBmiWidth();
newPitch -= 2 * p_bitmap->GetBmiWidth();
if (p_transparent) {
for (int y = heightAbs; y > 0; y--) {
for (int x = widthNormal; x > 0; x--) {
if (*bitmapSrcPtr) {
*surfaceData = m_16bitPal[*bitmapSrcPtr++];
}
else {
*surfaceData = 31775;
}
bitmapSrcPtr++;
surfaceData++;
}
bitmapSrcPtr += rowSeek;
surfaceData = (MxU16*) ((MxU8*) surfaceData + newPitch);
}
DDCOLORKEY key;
key.dwColorSpaceHighValue = 31775;
key.dwColorSpaceLowValue = 31775;
surface->SetColorKey(8, &key);
}
else {
for (int y = heightAbs; y > 0; y--) {
for (int x = widthNormal; x > 0; x--) {
*surfaceData++ = m_16bitPal[*bitmapSrcPtr++];
}
bitmapSrcPtr += rowSeek;
surfaceData = (MxU16*) ((MxU8*) surfaceData + newPitch);
}
}
surface->Unlock(ddsd.lpSurface);
}
}
return surface;
}
// STUB: LEGO1 0x100bc070